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题名: Evolution Law of Helium Bubbles in Hastelloy N Alloy on Post-Irradiation Annealing Conditions
作者: Gao, J; Bao, LM; Huang, HF; Li, Y; Zeng, JR; Liu, Z; Liu, RD; Shi, LQ
刊名: MATERIALS
出版日期: 2016
卷号: 9, 期号:10, 页码:-
关键词: nuclear materials ; radiation damage ; helium bubble ; denuded zone ; Ostwald ripening ; migration and coalescence
DOI: 10.3390/ma9100832
通讯作者: Huang, HF ; Li, Y (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China.
文章类型: 期刊论文
英文摘要: This work reports on the evolution law of helium bubbles in Hastelloy N alloy on post-irradiation annealing conditions. After helium ion irradiation at room temperature and subsequent annealing at 600 degrees C (1 h), the transmission electron microscopy (TEM) micrograph indicates the presence of helium bubbles with size of 2 nm in the depth range of 0-300 nm. As for the sample further annealed at 850 degrees C (5 h), on one hand, a "Denuded Zone" (0-38 nm) with rare helium bubbles forms due to the decreased helium concentration. On the other hand, the "Ripening Zone" (38-108 nm) and "Coalescence Zone" (108-350 nm) with huge differences in size and separation of helium bubbles, caused by different coarsening rates, are observed. The mechanisms of "Ostwald ripening" and "migration and coalescence", experimentally proved in this work, may explain these observations.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000389068400011
ISSN号: 1996-1944
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/26500
Appears in Collections:中科院上海应用物理研究所2011-2017年_期刊论文

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